Editing Semi Powered Infiltration Armor

'''Semi-Powered Infiltration Armor''', colloquially called "'''SPI Armor'''", was a armor system used by the [[UNSC]]. Though far more advanced than the [[ODST]] [[Body Suit]]s, it was far less advanced than the [[MJOLNIR Armor]]. It was also significantly cheaper to produce than the MJOLNIR armor. It was used by the [[Spartan-III]] supersoldiers. It features special photo-reactive panels that mimic the surrounding textures, effectively the UNSC equivalent to the [[Covenant]] [[Active Camoflague]] systems.

==SPI Mark I==
SPI Mark I was used by the Spartan-IIIs of Alpha and Beta Companies from [[2531]] to [[2545]]. It featured hardened plates and photo-reactive panels. Though advanced, it could only take a few glancing blows before failing. It featured full body armor with a helmet and [[HUD]], and a supply of breathable atmosphere, though only for a few minutes. It is also equipped with a cushioning layer of liquid nanocrystals that provided more ballistic protection than three centimeters of Kevlar diamond weave without the bulk. It was worn by the Spartan-IIIs of Alpha and Beta Companies, as well as Gamma Company for a short time.

==SPI Mark II==
SPI Mark II was a more advanced version of the armor, with numerous upgrades. They had new photo-reactive coating to boost camoflauging properties. There were also numerous experimental refits to gel ballistic layers, upgraded software suites, and other functions. It was proposed in [[2537]], but the request was denied because the armor was over budget. It is weakest at the knees. 

SPI Mark II was used at first by the Drill instructors for Gamma Company, then by Gamma Company themselves. 

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[[Category: UNSC]]
[[Category: Technology]]